org.springframework.beans.SimpleBeanInfoFactory Maven / Gradle / Ivy
/*
* Copyright 2002-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.beans;
import java.beans.BeanDescriptor;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.PropertyDescriptor;
import java.beans.SimpleBeanInfo;
import java.util.Collection;
import org.springframework.core.Ordered;
/**
* {@link BeanInfoFactory} implementation that bypasses the standard {@link java.beans.Introspector}
* for faster introspection, reduced to basic property determination (as commonly needed in Spring).
*
* Used by default in 6.0 through direct invocation from {@link CachedIntrospectionResults}.
* Potentially configured via a {@code META-INF/spring.factories} file with the following content,
* overriding other custom {@code org.springframework.beans.BeanInfoFactory} declarations:
* {@code org.springframework.beans.BeanInfoFactory=org.springframework.beans.SimpleBeanInfoFactory}
*
*
Ordered at {@code Ordered.LOWEST_PRECEDENCE - 1} to override {@link ExtendedBeanInfoFactory}
* (registered by default in 5.3) if necessary while still allowing other user-defined
* {@link BeanInfoFactory} types to take precedence.
*
* @author Juergen Hoeller
* @since 5.3.24
* @see ExtendedBeanInfoFactory
* @see CachedIntrospectionResults
*/
class SimpleBeanInfoFactory implements BeanInfoFactory, Ordered {
@Override
public BeanInfo getBeanInfo(Class beanClass) throws IntrospectionException {
Collection pds =
PropertyDescriptorUtils.determineBasicProperties(beanClass);
return new SimpleBeanInfo() {
@Override
public BeanDescriptor getBeanDescriptor() {
return new BeanDescriptor(beanClass);
}
@Override
public PropertyDescriptor[] getPropertyDescriptors() {
return pds.toArray(PropertyDescriptorUtils.EMPTY_PROPERTY_DESCRIPTOR_ARRAY);
}
};
}
@Override
public int getOrder() {
return Ordered.LOWEST_PRECEDENCE - 1;
}
}